/* Nzertek public site (nzertek.com/). Archivo is self-hosted (SIL OFL): the
   site CSP only allows stylesheets and fonts from 'self'. */
@font-face{font-family:"Archivo";font-style:normal;font-weight:400 800;font-stretch:62% 125%;font-display:swap;
  src:url("fonts/archivo-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  --red:#D0142C; --red-fill:#D0142C; --tag-ink:#D0142C; --red-fill-hover:#9E0F21; --red-deep:#9E0F21; --ink:#1C1516; --muted:#6A5F60;
  --paper:#FFFFFF; --blush:#FBF1F2; --line:#EBDCDD; --on-red:#FFFFFF;
  --grid:rgba(208,20,44,.07);
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --red:#F0374D; --red-fill:#D0142C; --tag-ink:#FF6B7D; --red-fill-hover:#A8102A; --red-deep:#FF6B7D; --ink:#F6EDEE; --muted:#B9A9AB;
    --paper:#170F10; --blush:#221617; --line:#3A2729; --on-red:#FFFFFF;
    --grid:rgba(240,55,77,.10);
  }
}
:root[data-theme="dark"]{
  --red:#F0374D; --red-fill:#D0142C; --tag-ink:#FF6B7D; --red-fill-hover:#A8102A; --red-deep:#FF6B7D; --ink:#F6EDEE; --muted:#B9A9AB;
  --paper:#170F10; --blush:#221617; --line:#3A2729; --on-red:#FFFFFF;
  --grid:rgba(240,55,77,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(env(safe-area-inset-top,0px) + 76px)}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:1.0625rem;line-height:1.6;font-variation-settings:"wdth" 100}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:4px}
.wrap{width:min(1160px,100% - 2.5rem);margin-inline:auto}
h1,h2,h3{font-variation-settings:"wdth" 118;line-height:1.05;letter-spacing:-.015em;margin:0}
h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.45rem,2.3vw,1.85rem);font-weight:760}
h3{font-size:1.08rem;font-weight:700;font-variation-settings:"wdth" 108;line-height:1.2}
p{margin:0}
.lead{font-size:1.2rem;color:var(--muted);max-width:56ch}
.kicker{color:var(--red);font-weight:650;font-size:.95rem;margin-bottom:.9rem}

/* nav */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--paper) 92%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:2rem;height:68px}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:800;font-size:1.3rem;font-variation-settings:"wdth" 120}
.mark{width:36px;height:36px;display:block;flex:0 0 auto}
.nav ul{display:flex;gap:1.6rem;list-style:none;margin:0 0 0 auto;padding:0}
.nav ul a{text-decoration:none;color:var(--muted);font-weight:550;font-size:.97rem}
.nav ul a:hover{color:var(--red)}

.menu-toggle{display:none;width:44px;height:44px;border:2px solid var(--line);border-radius:8px;background:var(--paper);cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;padding:0}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (prefers-reduced-motion: reduce){.menu-toggle span{transition:none}}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.35rem;border-radius:8px;font-weight:700;text-decoration:none;
  border:2px solid var(--red);font-size:1rem;line-height:1.1}
.btn-red{background:var(--red-fill);border-color:var(--red-fill);color:var(--on-red)}
.btn-red:hover{background:var(--red-fill-hover);border-color:var(--red-fill-hover)}
.btn-ghost{color:var(--red);background:transparent}
.btn-ghost:hover{background:var(--blush)}
.nav .btn{padding:.6rem 1rem;font-size:.92rem}

/* hero */
.hero{position:relative;padding:5rem 0 4rem;overflow:hidden;
  background:radial-gradient(ellipse 60% 70% at 85% 35%,color-mix(in srgb,var(--red) 12%,transparent),transparent 70%),
    linear-gradient(180deg,var(--blush) 0%,var(--paper) 100%)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:3.5rem;align-items:center}
.hero .lead{margin:1.4rem 0 2rem}
.ctas{display:flex;flex-wrap:wrap;gap:.8rem}
.facts{display:grid;grid-template-columns:repeat(3,auto);gap:2.2rem;margin-top:3rem;padding-top:1.6rem;border-top:2px solid var(--ink);max-width:560px}
.facts b{display:block;font-size:1.7rem;font-variation-settings:"wdth" 118;color:var(--red);line-height:1.1}
.facts span{font-size:.9rem;color:var(--muted)}
.schema{background:var(--paper);border:2px solid var(--ink);border-radius:14px;padding:1.4rem;box-shadow:10px 10px 0 var(--red)}
.schema figcaption{font-size:.92rem;color:var(--muted);margin-top:.8rem;border-top:1px dashed var(--line);padding-top:.8rem}
.schema svg text{font-family:"Archivo",system-ui,sans-serif}
.flow{stroke-dasharray:6 6}
@media (prefers-reduced-motion: no-preference){
  .flow{animation:run 1.2s linear infinite}
  @keyframes run{to{stroke-dashoffset:-24}}
}


.hero-photo{margin:0;border:2px solid var(--ink);border-radius:14px;overflow:hidden;box-shadow:10px 10px 0 var(--red);background:var(--paper)}
.hero-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.money-row{display:grid;grid-template-columns:minmax(0,400px) 1fr;gap:3rem;align-items:center;margin-top:3.5rem}
.money-row .schema{margin:0}
@media (max-width:900px){.money-row{grid-template-columns:1fr;gap:1.5rem}}

section{padding:5.5rem 0}
.split{display:grid;grid-template-columns:1fr 1.4fr;gap:4rem;align-items:start}


/* positioning with photo fade */
.pos-section{padding-top:0}
.pos{display:grid;grid-template-columns:.8fr 1fr;align-items:center;gap:1rem;min-height:380px}
.pos-img{align-self:stretch;overflow:hidden}
/* The photo faces left; mirrored so the face sits on the solid side, away from
   the fade. The mask turns with the image, hence 270deg (fade on screen right). */
.pos-img img{width:100%;height:100%;object-fit:cover;object-position:72% center;display:block;transform:scaleX(-1);
  -webkit-mask-image:linear-gradient(270deg,#000 50%,transparent 98%),linear-gradient(180deg,#000 75%,transparent);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(270deg,#000 50%,transparent 98%),linear-gradient(180deg,#000 75%,transparent);
  mask-composite:intersect}
.pos-text{padding:2.5rem clamp(1.25rem,5vw,4rem) 2.5rem 0;max-width:600px}
.pos-text .lead{margin:1.3rem 0 1.6rem}
.pos-text h2{font-size:clamp(1.4rem,2.1vw,1.75rem)}
.pos-img{height:400px;align-self:center}
.tags{list-style:none;padding:0;margin:0 0 2rem;display:flex;flex-wrap:wrap;gap:.55rem}
.tags li{border:1.5px solid var(--red);color:var(--tag-ink);background:var(--blush);padding:.4rem .9rem;border-radius:999px;font-weight:650;font-size:.92rem}
.btn-wide{width:100%;justify-content:center;padding:1rem 1.35rem;border-radius:999px}
@media (max-width:900px){
  .pos{grid-template-columns:1fr;min-height:0}
  .pos-img{height:220px}
  .pos-img img{-webkit-mask-image:linear-gradient(180deg,#000 60%,transparent);mask-image:linear-gradient(180deg,#000 60%,transparent)}
  .pos-text{padding:1rem 1.25rem 2rem}
}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid var(--ink);margin-top:1rem}
.pillar{padding:1.8rem 1.6rem 0 0}
.pillar + .pillar{padding-left:1.6rem;border-left:1px solid var(--line)}
.pillar svg{width:40px;height:40px;color:var(--red);margin-bottom:1rem}
.pillar p{color:var(--muted);margin-top:.6rem}

/* services */
.services{background:var(--blush)}
.svc-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:3rem}
.svc-list li{display:grid;grid-template-columns:auto 1fr;gap:1rem;padding:1.3rem 0;border-bottom:1px solid var(--line)}
.svc-list .dot{width:12px;height:12px;background:var(--red);margin-top:.55rem;border-radius:2px}
.svc-list p{color:var(--muted);font-size:.98rem;margin-top:.25rem}


/* banner photo */
.banner{margin:2rem 0 0;max-width:720px;border-radius:14px;overflow:hidden;border:2px solid var(--ink);aspect-ratio:16/7}
.banner img{width:100%;height:100%;object-fit:cover;object-position:center 35%;display:block}
@media (max-width:900px){.banner{aspect-ratio:16/9}.banner img{object-position:55% center}}




.banner-row{display:grid;grid-template-columns:minmax(0,720px) 1fr;gap:2.5rem;align-items:center;margin-top:2rem}
.banner-row .banner{margin:0;aspect-ratio:16/10}
.assure h3{margin-bottom:1rem}
.assure dl{margin:0}
.assure dl>div{padding:.8rem 0 .8rem 1rem;border-left:3px solid var(--red)}
.assure dl>div+div{margin-top:.5rem}
.assure dt{font-weight:700}
.assure dd{margin:.15rem 0 0;color:var(--muted);font-size:.96rem}
@media (max-width:900px){.banner-row{grid-template-columns:1fr;gap:1.5rem}}


.svc-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:3rem}
@media (max-width:700px){.svc-gallery{grid-template-columns:1fr 1fr}.svc-gallery .svc-photo:last-child{grid-column:1/-1}}
.svc-photo{margin:0;border-radius:14px;overflow:hidden;border:2px solid var(--ink);background:var(--paper)}
.svc-photo img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.svc-photo figcaption{padding:.5rem .75rem;font-size:.82rem;line-height:1.3;font-weight:650;color:var(--ink);border-top:3px solid var(--red)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:3rem;counter-reset:s}
.step{border:2px solid var(--ink);border-radius:12px;padding:1.8rem;position:relative;background:var(--paper)}
.step::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  background:var(--red-fill);color:var(--on-red);font-weight:800;font-size:1.2rem;margin-bottom:1.2rem}
.step p{color:var(--muted);margin-top:.6rem}
.step.key{background:var(--red-fill);color:var(--on-red);border-color:var(--red-fill)}
.step.key p{color:var(--on-red);opacity:.9}
.step.key::before{background:var(--on-red);color:var(--red)}

/* pros */
.pros{background:var(--red-fill);color:var(--on-red)}
.pros .lead{color:var(--on-red);opacity:.9}
.pros ul{list-style:none;padding:0;margin:2rem 0}
.pros li{padding:.75rem 0;border-bottom:1px solid rgba(255,255,255,.3);display:flex;gap:.8rem}
.pros li::before{content:"";flex:0 0 18px;height:10px;border-left:3px solid currentColor;border-bottom:3px solid currentColor;transform:rotate(-45deg) translateY(3px)}
.founder-offer{margin:0 0 1rem;padding:1rem 1.2rem;border:2px solid currentColor;border-radius:12px;background:rgba(0,0,0,.12);line-height:1.5}
.btn-white{background:#fff;color:#D0142C;border-color:#fff}
.btn-white:hover{background:transparent;color:#fff}
.card-pro{background:rgba(0,0,0,.14);border-radius:14px;padding:2rem}
.card-pro h3{margin-bottom:.8rem}


.pro-photo{margin:0 0 1.4rem;border-radius:10px;overflow:hidden;border:3px solid #fff}
.pro-photo img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;object-position:center 30%}

/* faq */
details{border-bottom:1px solid var(--line);padding:1.2rem 0}
summary{cursor:pointer;font-weight:700;font-size:1.1rem;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--red);font-size:1.5rem;line-height:1}
details[open] summary::after{content:"−"}
details p{color:var(--muted);margin-top:.7rem;max-width:62ch}


.faq-photo{margin:1.8rem 0 0;border-radius:14px;overflow:hidden;border:2px solid var(--ink);max-width:420px}
.faq-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.faq-note{margin-top:1rem;color:var(--muted);max-width:420px;font-size:.96rem}

/* contact */
.contact-top{display:grid;grid-template-columns:minmax(0,440px) 1fr;gap:2.5rem;align-items:center}
.contact-photo{margin:0;border-radius:14px;overflow:hidden;border:2px solid var(--ink)}
.contact-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
@media (max-width:900px){.contact-top{grid-template-columns:1fr;gap:1.5rem}}

.contact{border-top:2px solid var(--ink)}
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2.5rem}
.channel{padding:1.5rem;border:1px solid var(--line);border-radius:12px;text-decoration:none}
.channel:hover{border-color:var(--red)}
.channel small{display:block;color:var(--muted);font-size:.9rem}
.channel strong{font-size:1.1rem}
/* mailto opens nothing on a computer without a mail app (blank tab): the
   webmail buttons open a new message to support directly in Gmail/Outlook. */
.channel-mail > a{text-decoration:none;word-break:break-all}
.webmail{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.7rem}
.webmail-btn{display:inline-block;padding:.4rem .9rem;min-height:32px;border:1.5px solid var(--red);border-radius:999px;
  color:var(--tag-ink);font-size:.9rem;font-weight:650;text-decoration:none}
.webmail-btn:hover{background:var(--blush)}
/* Chooser opened by clicking a support address on a computer (site.js). */
.mail-chooser{position:absolute;z-index:50;display:flex;flex-direction:column;min-width:220px;padding:.4rem;
  background:var(--paper);border:2px solid var(--ink);border-radius:12px;box-shadow:6px 6px 0 var(--red)}
.mail-chooser-item{display:block;padding:.6rem .8rem;border:0;border-radius:8px;background:none;font:inherit;font-size:.95rem;
  font-weight:600;color:var(--ink);text-align:left;text-decoration:none;cursor:pointer}
.mail-chooser-item:hover,.mail-chooser-item:focus-visible{background:var(--blush);outline:none}
.mail-chooser-item:focus-visible{box-shadow:inset 0 0 0 2px var(--red)}

footer{padding:2.5rem 0;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}

@media (max-width:900px){
  .nav{position:relative}
  .menu-toggle{display:flex;margin-left:auto;order:2}
  .nav .btn{order:1;margin-left:auto}
  .nav ul{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;margin:0;
    background:var(--paper);border-bottom:2px solid var(--ink);box-shadow:0 12px 24px rgba(0,0,0,.08);padding:.5rem 1.25rem 1rem}
  .nav ul.open{display:flex}
  .nav ul a{display:block;padding:.85rem 0;border-bottom:1px solid var(--line);font-size:1.05rem;color:var(--ink)}
  .nav ul li:last-child a{border-bottom:0}
  .nav{gap:.6rem}
  .brand{font-size:1.15rem}
  .nav .btn{padding:.55rem .8rem;font-size:.85rem}
  .hero{padding-top:3rem}
  .hero-grid,.split{grid-template-columns:1fr;gap:2.5rem}
  .pillars,.steps,.channels{grid-template-columns:1fr}
  .pillar + .pillar{padding-left:0;border-left:0;border-top:1px solid var(--line)}
  .svc-list{grid-template-columns:1fr}
  .facts{gap:1.2rem}
  .facts b{font-size:1.35rem}
  section{padding:4rem 0}
}
footer nav{display:flex;gap:1.2rem;flex-wrap:wrap}
footer nav a{color:var(--muted)}
footer nav a:hover{color:var(--red)}
/* A grid item defaults to min-width:auto, so the facts row (three long
   words) widened the whole hero column past a phone screen, and .hero's
   overflow:hidden clipped the text instead of scrolling. */
.hero-grid>*,.split>*{min-width:0}
@media (max-width:600px){
  .facts{grid-template-columns:1fr;gap:.9rem}
  .facts div{display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap}
}
/* The diagram scales with its column: in the single-column layout it used
   to stretch to the full width (≈700px, oversized text). */
.money-row .schema{width:100%;max-width:400px;margin-inline:auto}
/* White on the dark-mode text red (#F0374D) is only 3.9:1: every red *fill*
   under white text uses --red-fill (5.5:1 in both themes). Footer and nav
   links get a 24px+ touch target (WCAG 2.2 target size). */
footer nav a,.nav ul a{display:inline-block;padding-block:.35rem}

/* Trade articles (web/site/servicios/*.html, served by the service-page
   edge function). Same tokens as the home page, so both themes follow. */
.article section{padding:4.5rem 0}
.art-hero{padding-top:3rem!important;border-bottom:2px solid var(--ink)}
.art-hero h1{font-size:clamp(1.8rem,3.4vw,2.7rem)}
.art-hero .lead{margin:1.3rem 0 1.8rem}
.crumbs{font-size:.92rem;color:var(--muted);margin-bottom:1.2rem}
.crumbs a{color:var(--muted)}
.crumbs span{color:var(--ink);font-weight:650}
.art-illus{margin:0;background:var(--blush);border:2px solid var(--ink);border-radius:14px;padding:1rem;box-shadow:10px 10px 0 var(--red)}
.art-illus svg{display:block;width:100%;height:auto}
.il-wall{fill:var(--paper);stroke:var(--line);stroke-width:2}
.il-unit,.il-out{fill:var(--paper);stroke:var(--ink);stroke-width:3}
.il-vent{fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.il-led{fill:var(--red)}
.il-air{fill:none;stroke:var(--red);stroke-width:3;stroke-linecap:round;opacity:.8}
.il-fan{fill:none;stroke:var(--ink);stroke-width:3}
.il-blade{stroke:var(--ink);stroke-width:3;stroke-linecap:round}
.il-pipe{fill:none;stroke:var(--red);stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.il-tag{fill:var(--muted);font-size:15px;font-weight:600}
.il-coat{fill:var(--red);opacity:.2}
.ly-lead{fill:none;stroke:var(--muted);stroke-width:1.5}
.art-alt{background:var(--blush)}
.art-lead{margin:1rem 0 2.2rem;max-width:62ch}
.charts{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.chart{margin:0;padding:1.4rem;border:2px solid var(--ink);border-radius:14px;background:var(--paper)}
.chart svg{display:block;width:100%;height:auto}
.chart figcaption{margin-top:1rem;padding-top:.8rem;border-top:1px dashed var(--line);font-size:.93rem;color:var(--muted)}
.chart figcaption strong{color:var(--ink)}
.chart .src{display:block;margin-top:.4rem;font-size:.85rem}
.ch-label{fill:var(--ink);font-size:17px;font-weight:600}
.ch-val{fill:var(--ink);font-size:16px;font-weight:700}
.ch-bar{fill:var(--muted);opacity:.55}
.ch-bar.ch-hi{fill:var(--red);opacity:1}
.timeline{list-style:none;margin:0;padding:0;counter-reset:t}
.timeline li{position:relative;padding:0 0 1.6rem 2.6rem;border-left:2px solid var(--red);margin-left:.8rem}
.timeline li:last-child{border-left-color:transparent;padding-bottom:0}
.timeline li::before{counter-increment:t;content:counter(t);position:absolute;left:-.95rem;top:-.1rem;width:1.8rem;height:1.8rem;border-radius:50%;
  background:var(--red-fill);color:var(--on-red);font-weight:750;font-size:.9rem;display:grid;place-items:center}
.timeline strong{display:block;font-size:1.08rem}
.timeline span{display:block;color:var(--muted);margin-top:.3rem}
.art-note{margin-top:1.8rem;padding:1rem 1.2rem;border-left:4px solid var(--red);background:var(--paper);border-radius:0 10px 10px 0;font-size:.97rem}
.checks{list-style:none;padding:0;margin:1.8rem 0 0;display:grid;gap:1rem}
.art-block > .wrap > .checks{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.checks li{position:relative;padding:1.1rem 1.2rem 1.1rem 3.2rem;border:1px solid var(--line);border-radius:12px;background:var(--paper);color:var(--muted)}
.checks li strong{display:block;color:var(--ink);margin-bottom:.2rem}
.checks li::before{content:"";position:absolute;left:1.2rem;top:1.35rem;width:14px;height:8px;border-left:3px solid var(--red);border-bottom:3px solid var(--red);transform:rotate(-45deg)}
.art-photo{margin:1.6rem 0 0;border-radius:14px;overflow:hidden;border:2px solid var(--ink);max-width:420px}
.art-photo img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.flow{list-style:none;padding:0;margin:2.2rem 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.flow li{position:relative;padding:1.4rem;border:2px solid var(--ink);border-radius:12px;background:var(--paper)}
.flow li strong{display:block;margin:.6rem 0 .3rem;font-size:1.05rem}
.flow li > span:last-child{color:var(--muted);font-size:.95rem}
.flow li:last-child{border-color:var(--red);box-shadow:6px 6px 0 var(--red)}
.flow li:not(:last-child)::after{content:"→";position:absolute;right:-1.05rem;top:50%;transform:translateY(-50%);color:var(--red);font-weight:800;font-size:1.3rem}
.flow-n{display:inline-grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--red-fill);color:var(--on-red);font-weight:750}
.flow-note{margin-top:1.4rem;color:var(--muted)}
.pro-cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.pro-card{display:flex;gap:1rem;align-items:flex-start;padding:1.2rem;border:2px solid var(--ink);border-radius:12px;background:var(--paper);text-decoration:none}
.pro-card:hover{border-color:var(--red)}
.pro-avatar{flex:0 0 56px;width:56px;height:56px;border-radius:50%;overflow:hidden;background:var(--blush);color:var(--red);display:grid;place-items:center;font-weight:750}
.pro-avatar img{width:100%;height:100%;object-fit:cover}
.pro-info{display:flex;flex-direction:column;gap:.15rem;min-width:0}
.pro-info > span{color:var(--muted);font-size:.95rem}
.pro-rating{font-weight:650;font-size:.92rem}
.pro-rating small{color:var(--muted);font-weight:500}
.pro-new{color:var(--tag-ink)}
.pro-badge{align-self:flex-start;margin-top:.3rem;font-size:.8rem;font-weight:650;padding:.15rem .6rem;border:1.5px solid var(--red);border-radius:999px;color:var(--tag-ink)}
.pros-empty{padding:1.6rem;border:2px dashed var(--red);border-radius:14px;background:var(--paper);max-width:640px}
.pros-empty p{color:var(--muted);margin:.6rem 0 1.2rem}
.art-cta{background:var(--red-fill);color:var(--on-red);text-align:center}
.art-cta .lead{color:var(--on-red);opacity:.92;margin:1rem auto 1.8rem}
.svc-list h3 a,.tags a,.svc-cards h3 a{color:inherit;text-decoration:none}
.svc-list h3 a,.svc-cards h3 a{border-bottom:2px solid var(--red)}
.svc-list h3 a::after,.svc-cards h3 a::after{content:"\00a0→";color:var(--red)}
.tags a:hover,.svc-list h3 a:hover,.svc-cards h3 a:hover{color:var(--red)}
@media (max-width:900px){
  .charts{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .flow li:nth-child(2)::after{display:none}
}
@media (max-width:560px){
  .flow{grid-template-columns:1fr}
  .flow li::after{display:none}
  .art-illus{box-shadow:6px 6px 0 var(--red)}
}
.scopes{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-top:1.8rem}
.scope-h{font-size:1.15rem;padding-bottom:.5rem;border-bottom:3px solid var(--red);display:inline-block}
.scopes .checks{margin-top:1rem}
@media (max-width:900px){.scopes{grid-template-columns:1fr}}
.kicker.art-guide{margin-top:3.2rem}

/* Search box and pro prompt (site.js setUpTradeSearch). */
.tsearch{margin:1.4rem 0 1.6rem;max-width:560px}
.ts-label{display:block;font-weight:700;margin-bottom:.45rem}
.ts-row{display:flex;gap:.6rem}
.ts-field{position:relative;flex:1;min-width:0}
.ts-field input{width:100%;height:48px;padding:0 .95rem;border:2px solid var(--ink);border-radius:8px;background:var(--paper);color:var(--ink);font:inherit}
.ts-field input::placeholder{color:var(--muted)}
.ts-field input:focus{outline:3px solid var(--red);outline-offset:2px}
.ts-row .btn{height:48px;flex:0 0 auto}
.ts-suggest{position:absolute;z-index:40;left:0;right:0;top:calc(100% + 4px);list-style:none;margin:0;padding:.3rem;
  background:var(--paper);border:2px solid var(--ink);border-radius:10px;box-shadow:6px 6px 0 var(--red)}
.ts-suggest li{padding:.55rem .7rem;border-radius:6px;cursor:pointer;font-weight:600}
.ts-suggest li:hover,.ts-suggest li[aria-selected="true"]{background:var(--blush);color:var(--tag-ink)}
.ts-result{margin-top:1rem;padding:1.2rem;border:2px solid var(--ink);border-radius:12px;background:var(--paper)}
.ts-result:focus{outline:none}
.ts-title{font-weight:750;font-size:1.05rem}
.ts-text{color:var(--muted);margin-top:.3rem}
.ts-result .pro-cards{margin-top:.9rem;grid-template-columns:1fr}
.ts-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.pro-strip{background:var(--blush);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);padding:2.6rem 0}
.pro-strip-in{display:grid;grid-template-columns:1fr 1.1fr;gap:2.5rem;align-items:center}
.pro-strip h2{margin-top:.2rem}
.ps-kicker{color:var(--red);font-weight:700}
.ps-sub{color:var(--muted);margin-top:.6rem;max-width:44ch}
.pro-strip .tsearch{margin:0}
@media (max-width:900px){.pro-strip-in{grid-template-columns:1fr;gap:1.2rem}}
@media (max-width:420px){.ts-row{flex-direction:column}.ts-row .btn{width:100%;justify-content:center}}

/* "¿Por qué Nzertek?" pages (tool/gen_about_pages.ts). */
.reasons{list-style:none;padding:0;margin:2rem 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.2rem}
.reason{position:relative;padding:1.6rem 1.5rem 1.4rem;border:2px solid var(--ink);border-radius:14px;background:var(--paper)}
.reason-n{display:inline-block;font-weight:800;font-size:1.5rem;color:var(--red);font-variation-settings:"wdth" 118;margin-bottom:.4rem}
.reason h3{font-size:1.12rem;margin-bottom:.5rem}
.reason p{color:var(--muted)}
.reason .reason-why{margin-top:.8rem;padding-top:.7rem;border-top:1px dashed var(--line);color:var(--ink);font-size:.95rem}
.reason .reason-why strong{color:var(--red)}
.facts-list{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.facts-list a{color:var(--red)}
/* Links first, the copyright line closes the page on its own row. */
footer .footer-copy{flex-basis:100%}

/* motion: only for people who have not asked their device for less motion.
   .reveal is added by site.js, so without JavaScript everything stays visible. */
@media (prefers-reduced-motion: no-preference){
  .hero-photo img{animation:settle 1.8s cubic-bezier(.2,.7,.2,1) both}
  @keyframes settle{from{transform:scale(1.07)}to{transform:none}}
  .svc-photo img,.pro-photo img,.faq-photo img,.contact-photo img,.art-photo img,.banner img{transition:transform .7s cubic-bezier(.2,.7,.2,1)}
  .svc-photo:hover img,.pro-photo:hover img,.faq-photo:hover img,.contact-photo:hover img,.art-photo:hover img,.banner:hover img{transform:scale(1.04)}
  .pro-card{transition:transform .25s ease,box-shadow .25s ease}
  .pro-card:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.08)}
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--reveal-delay,0s)}
  .reveal.in{opacity:1;transform:none}
}

/* hero: decorative dotted map of Mexico behind the content. */
.hero-grid{position:relative;z-index:1}
.hero-map{position:absolute;z-index:0;left:50%;top:52%;width:min(96%,1180px);transform:translate(-50%,-50%);pointer-events:none;opacity:.08}
.hero-map path{fill:none;stroke:var(--red);stroke-width:5;stroke-linecap:round}
@media (max-width:900px){.hero-map{width:110%;right:-30%;top:auto;bottom:-4%;transform:none;opacity:.1}}
/* "Nuestra diferencia": a muted real video (Pexels licence) fades in over the
   electrician photo once it plays; mirrored and masked exactly like the photo. */
.pos-img{position:relative}
.loop-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:72% center;display:block;opacity:0;transition:opacity 1.2s ease;transform:scaleX(-1);
  -webkit-mask-image:linear-gradient(270deg,#000 50%,transparent 98%),linear-gradient(180deg,#000 75%,transparent);
  -webkit-mask-composite:source-in;
  mask-image:linear-gradient(270deg,#000 50%,transparent 98%),linear-gradient(180deg,#000 75%,transparent);
  mask-composite:intersect}
.loop-video.on{opacity:1}
@media (max-width:900px){.loop-video{-webkit-mask-image:linear-gradient(180deg,#000 60%,transparent);mask-image:linear-gradient(180deg,#000 60%,transparent)}}
/* Article motion pilot (main.art-motion): the hero photo gets the looping video
   as is (no mirror, no mask), and chart bars grow from zero once the chart has
   scrolled into view (.reveal/.in come from site.js). */
.art-hero .hero-photo[data-video]{position:relative}
.art-hero .hero-photo .loop-video{transform:none;object-position:center;-webkit-mask-image:none;mask-image:none}
@media (prefers-reduced-motion: no-preference){
  .art-motion .chart .ch-bar{transform-box:fill-box;transform-origin:left center;transition:transform 1.1s cubic-bezier(.2,.7,.2,1)}
  .art-motion .chart .ch-val{transition:opacity .5s ease}
  .art-motion .chart.reveal:not(.in) .ch-bar{transform:scaleX(0)}
  .art-motion .chart.reveal:not(.in) .ch-val{opacity:0}
  .art-motion .chart.reveal.in .ch-val{transition-delay:.9s}
  .art-motion .chart rect:nth-of-type(2){transition-delay:.12s}
  .art-motion .chart rect:nth-of-type(3){transition-delay:.24s}
  .art-motion .chart rect:nth-of-type(4){transition-delay:.36s}
  .art-motion .chart rect:nth-of-type(5){transition-delay:.48s}
}